干旱区生态环境知识资源中心(Arid): 禁牧对中度退化伊犁绢蒿荒漠土壤活性有机碳组分的影响

Arid

	禁牧对中度退化伊犁绢蒿荒漠土壤活性有机碳组分的影响
其他题名	Effects of Grazing Exclusion on Soil Active Organic Carbon Fractions in Moderately Degraded Desert of Seriphidium transiliense
	董乙强; 安沙舟; 孙宗玖; 杨合龙; 杨静
来源期刊	土壤通报
ISSN	0564-3945
出版年	2016
卷号	47 期号:2 页码:364-370
中文摘要	为了探究荒漠土壤活性有机碳组分对禁牧年限的响应,以伊犁绢蒿(Seriphidium transiliense)荒漠草地为研究对象,对不同禁牧年限(禁牧时间为0 a,1 a,4 a,11 a)荒漠草地0~50 cm的土壤有机碳(SOC)、易氧化碳(ROC)、易氧化碳分配比例(PROC)、轻组组分比例(LFR)、轻组有机碳(LFOC)、颗粒组分比例(PFR)、颗粒有机碳(POC)进行对比分析。结果表明:随着禁牧年限增加,0~10 cm土层SOC含量基本呈先降后升趋势,0~50 cm土层ROC、PROC总体呈增加趋势;与对照相比,禁牧区5~10 cm土层LFR、LFOC显著增加(P< 0.05),0~50 cm土层PFR显著降低,POC变化不明显。总之,禁牧对SOC、POC影响较小,对ROC、PROC、PFR、5~10 cm土层LFR和LFOC影响较大,可作为伊犁绢蒿荒漠土壤对禁牧响应的敏感指标。
英文摘要	In order to explore th e response of soil active organic carbon fractions to grazing exclusion, this paper compared total soil organic carbon, readily oxidizable carbon, light fraction of organic carbon, particulate organic carbon at 0-50 cm depth of soil in Seriphidium transiliense desert under different grazing exclusion years (including 0 year, 1 year, 4 years and 11 years). The results showed that total soil organic carbon at 0-10 cm soil layer appeared decreased at first and then increased with increasing grazing exclusion years, while readily oxidizable carbon and its distribution ratio to the total were increased at 0-50 cm soil layer. The light fraction organic carbon and its component ratio at 5-10 cm soil layer were significantly higher after grazing exclusion (P < 0.05). Particulate organic carbon at 0-0 cm soil layer did not change significantly after grazing exclusion, while particulate component ratios decreased significantly (P < 0.05). In a word, the responses of readily oxidizable carbon and its distribution ratio, particulate component ratio, and light fraction of organic carbon and its component ratio at 5-10 cm soil layer to grazing exclusion were more sensitive than total soil organic carbon. Those parameters could be used as sensitive indicators to grazing exclusion in Seriphidium transiliense desert.
中文关键词	禁牧 ; 退化荒漠草地 ; 有机碳 ; 轻组有机碳 ; 颗粒有机碳
英文关键词	Grazing exclusion Degraded desert grassland Soil organic carbon Light fraction organic carbon Particulate organic carbon
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:5716417
来源机构	新疆农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/235072
作者单位	新疆农业大学草业与环境科学学院, 新疆草地资源与生态自治区重点实验室, 乌鲁木齐, 新疆 830052, 中国
推荐引用方式 GB/T 7714	董乙强,安沙舟,孙宗玖,等. 禁牧对中度退化伊犁绢蒿荒漠土壤活性有机碳组分的影响[J]. 新疆农业大学,2016,47(2):364-370.
APA	董乙强,安沙舟,孙宗玖,杨合龙,&杨静.(2016).禁牧对中度退化伊犁绢蒿荒漠土壤活性有机碳组分的影响.土壤通报,47(2),364-370.
MLA	董乙强,et al."禁牧对中度退化伊犁绢蒿荒漠土壤活性有机碳组分的影响".土壤通报 47.2(2016):364-370.